TY  - JOUR
A1  - Papadopoulos, G.
A1  - Santos Silva, J.M.C.
T1  - Identification issues in some double-index models for non-negative data
Y1  - 2012
DO  - 10.1016/j.econlet.2012.06.001
JF  - Economics Letters
VL  - 117
IS  - 1

ER  -